gistfile1.js

var map;

var beaches = [
  ['Chalong Bay', 7.830051,98.349899, 4],
  ['Karmala', 7.949757,98.289818, 5],
  ['Karon', 7.843486,98.303234, 3],
  ['Kata', 7.821527,98.299374, 2]
];

function initializeMap() {

  var mapOptions = {
    zoom: 12,
    scrollwheel: false,
    mapTypeControlOptions: {
      mapTypeIds: []
    },
    center: new google.maps.LatLng(7.894669,98.379822),
    mapTypeId: google.maps.MapTypeId.ROADMAP
  };

  var map = new google.maps.Map(document.getElementById('map-canvas'),
      mapOptions);

  setMarkers(map, beaches);


	google.maps.event.addListener(marker, 'click', function() {
		// Do something
	});

};

function setMarkers(map,locations) {
	for (var i = 0; i < locations.length; i ++) {
		var region = beaches[i];
		var myLatLng = new google.maps.LatLng(region[1],region[2]);
		var marker = new google.maps.Marker({
			position: myLatLng,
			map: map
		});
	}
};